Perhaps you should try some spelling variations:
curious conversations » curious conversion, serious conversation, courageous conversations
2.1 germany » 21 germany, 2017 germany, 9.13 germany
ref history » reef history, brief history, bief history
2 germany » 7 germany, 2 german, 8 germany
2023 20th » 2023 26th, 2023 10th, 2023 24th
2020 20th » 2020 16th, 2020 2021, 2020 5th

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: %22christian curious conversations %((2.1 germany) OR (2 germany)) %ref history %((2023 20th) OR (2020 20th)) century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22christian curious conversations %((2.1 germany) or (2 germany)) %ref history %((2023 20th) OR (2020 20th)) century%22".
• Adding a wildcard symbol may retrieve word variants: %22christian curious conversations %((2.1 germany) or (2 germany)) %ref history %((2023 20th) OR (2020 20th)) century%22*.